Cuba plunged into darkness for the second time in less than a week on Friday, as the state-owned Union Electrica de Cuba reported a nationwide blackout that began at 4:30pm local time. The outage follows a similar power failure on Monday, bringing the total number of island-wide blackouts to four this year, with two others occurring in March.

The recurring power failures underscore the severe strain on Cuba's aging electricity infrastructure, much of which dates back to the Cold War era. However, the problem has been significantly exacerbated since January, when the administration of United States President Donald Trump effectively halted Cuba's foreign oil supply.

This intensified fuel blockade is part of a broader US policy under Trump aimed at exerting pressure on the communist-led island. The US has maintained a trade embargo against Cuba since the 1960s, but recent measures have targeted its access to fuel. Following the removal of Venezuelan President Nicolas Maduro, an ally of the Cuban government, in January, Trump announced that Venezuela would cease oil and financial aid to Cuba.

Further escalating the pressure, Trump issued an executive order on January 29, declaring Cuba an "unusual and extraordinary threat" to the US. This order included the threat of steep tariffs on any country supplying fuel to the island. Consequently, only one Russian oil tanker has managed to reach Cuba since March, severely limiting the nation's fuel imports.

According to the International Energy Agency, Cuba currently produces only 40 percent of the oil it consumes, relying on overseas suppliers for the remaining 60 percent. The disruption of these imports, compounded by the aging grid, creates a precarious energy situation.

Human rights experts have expressed concern over the potential consequences of this sustained fuel deprivation on Cuba's civilian population. The lack of fuel can lead to the shutdown of essential public services, including transportation, and has wider implications for daily life and the economy.

The repeated blackouts raise questions about the resilience of Cuba's infrastructure and its ability to cope with external pressures. The government has not provided a specific explanation for the latest outage, leaving the exact cause of the failure open to speculation beyond the known fuel shortages.

As Cuba grapples with these recurring energy crises, the impact on its citizens and its relationship with the United States remains a significant concern. The situation highlights the complex interplay of geopolitical policies, economic sanctions, and the daily realities faced by the Cuban population.